John Maynard, November 2, 2019
Introduction
The potential for efficient high-data-rate communications using the laser has been recognized since its initial development more than 50 years ago. Free-space optical communications using lasers offer significant advantages over radio frequency (RF) or microwave systems for both airborne and satellite platforms, including high-capacity trunk links or dedicated point-to-point links for high-data-rate sensors. Communication links using laser beams are inherently resistant to both tapping and jamming. Short optical wavelengths allow high antenna gains for establishing links over extremely long distances and enable the use of shoebox-sized transmitters and receivers. Although several major initiatives have matured system-level designs, a full-scale operational free-space lasercom link is not yet available.
